How sensitive is the fibre laser strain sensor?

Scott Foster; Geoffrey A. Cranch; Alexei Tikhomirov

doi:10.1117/12.785936

16 May 2008 How sensitive is the fibre laser strain sensor?

Scott Foster, Geoffrey A. Cranch, Alexei Tikhomirov

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70043J (2008) https://doi.org/10.1117/12.785936
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

It is known that the strain resolution of fibre laser sensors is determined by frequency noise of the laser sensor element. We compare the frequency noise of a number of distributed feedback fibre laser sensors and find that all exhibit similar dominant 1/f noise below 10kHz. Examination of current theories of thermodynamic noise and 1/f noise in fibre lasers suggests that these lasers may be close to the theoretical limits of strain sensitivity.

Citation Download Citation

Scott Foster, Geoffrey A. Cranch, and Alexei Tikhomirov "How sensitive is the fibre laser strain sensor?", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70043J (16 May 2008); https://doi.org/10.1117/12.785936

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